Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is an infinite bus bar?

34 56438

In a d.c current, the power is the product of voltage and current. This relationship does not always apply to effective(r.m.s) values in an a.c circuit. Explain the reason for this.

2 3950

In a d.c circuit, if current and resistance are known, power (P=I*I*R) can be determined. This relationship also applied to an a.c circuit. Comment the reason for this.

3 2570




Explain why machinery used on a.c supply is usually rated in KVA instead of KW?

EEE, Mtandt,

10 14083

What is meant by power factor correction?

Aspire,

5 8139

when will be the iocl interview results i faced interview on 8th september 2008 iam from electrical branch i faced interview for the post of electrical engineer??????????????????????//

816

what is the earthing condition between earth & phase.

ABB,

3 3303

what is the earthing condition between earth & neutral.

ABB,

6 6687




how percentage impedence effect on the size of the power transformer?

Bhel,

2 4594

I HAVE BEEN SELECTED FOR APGENCO A.E(ELECTRICAL) 2008.HOW MUCH WEIGHTAGE FOR INTERVIEW AND WRITTEN TEST.HOW I HAVE TO PREPARE. PLEASE GIVE INFORMATION IF U KNOW.WHAT ABT G.D THIS TIME.CALL RATIO 1:2

1501

Why electrical engineer use Cu Strip for transformer neutral why not GI Strip? What if we use GI instead of Cu does it affects the transformer performance.

7 10399

WHAT IS MVA RATING OF KOTHAGUDAM THERMAL STATION POWER TRANSFORMER?

Power Grid, CESC,

2 4064

what collector is used for 100kmph-120kmph tracion application?

APTransco,

3 2957

which starter is used for synchronous motor

IBM, APTransco,

18 12385

you have an automatic voltage regulator at home for your appliances,if the voltage in your area drops from 220v to 190v,does the output of the automatic voltage regulator drops?or does it retains the 220v output?

4 3374


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Un-Answered Questions { Electrical Engineering }

derive DC RMS value for half wave rectifier?

1893


mccb service sittings be done?

551


what is feeder bay?

192


What will happened if the neutral of secondary of Xformer ( Star point) Note it's above KVA rated Xformer

585


At what speed 1 HP motor can run an electric car of weighing 400 kg?

331






The capacity of the transformer is 20/25 MVA, Ratio is 132/11 KV, Vactor group YNyno. and impedance is 10.07%. As per the calculation the secondary current is 1312.2Amps. The maximum fault current the transformer should sustain is 13.030KA. How many times the transformer should sustain the maximum short circuit current of 13.030KA over a period up 1 Year. The transformer is repaired one & 10 Years old.

3919


How eddy current generation support the idea of train braking?

621


which type of motor is used in automatic swing gate

700


Hello Friends, How can we recognize the CT Star Point is S1 or S2 in case of Electro Mechanical Relays and what is meant by Restraining coil in relays and what is the purpose of that.. thank you in advance..

812


what is excitation/

733


What type of pipe material G.I or M.S is used for sprinkler system?

6761


how we find transformer capacity by ohm

831


If a air condition consume 2.50 to 3.00 amp then how much it will consume in watts if it is running 10 hours out of 24 hours????

607


how much maximum load a 2 core (Single phase) 16mm aluminium wire can take ?

1333


what is the use of power transformer in GSS.

1046